GB139514A - Improvements in electron tube apparatus - Google Patents
Improvements in electron tube apparatusInfo
- Publication number
- GB139514A GB139514A GB5899/20A GB589920A GB139514A GB 139514 A GB139514 A GB 139514A GB 5899/20 A GB5899/20 A GB 5899/20A GB 589920 A GB589920 A GB 589920A GB 139514 A GB139514 A GB 139514A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potential
- grid
- elastic
- anode
- impact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measuring Fluid Pressure (AREA)
- Particle Accelerators (AREA)
Abstract
139,514. Westinghouse Lamp Co., (Assignees of Rentschler, H. C.). Feb. 27, 1919, [Convention date]. Vacuum tubes; low-pressure metallic-vapour apparatus.-A tube having an electron-emitting cathode 5, a plate anode 4, and an intermediate grid 6, is filled with a medium such as argon or metallic vapour which exhibits the phenomenon of " resonance potential," the grid being maintained at a positive potential with respect to the anode and cathode. It is stated that the impact of primary electrons on gas particles is elastic or non-elastic, depending on the velocity of the electrons as determined by the potential of the grid, such primary electrons either passing through the gas particles to the grid, or rebounding, when the impact is elastic, or passing with reduced velocity when the impact is non-elastic; the latter phenomenon is termed " resonance " potential." In the case of argon at a pressure of a fraction of a millimetre to several millimetres, the phenomenon occurs with a positive potential of about 12.3 volts applied to the anode, the rate of change of the resultant anode current with increase of grid potential, being then zero. The tube may be used as a detector or amplifier of wireless signals, or as a frequency-doubler. Specification 15555/15 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US279581A US1465997A (en) | 1919-02-27 | 1919-02-27 | Electron-tube apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB139514A true GB139514A (en) | 1921-06-27 |
Family
ID=23069578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5899/20A Expired GB139514A (en) | 1919-02-27 | 1920-02-27 | Improvements in electron tube apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1465997A (en) |
| FR (2) | FR519666A (en) |
| GB (1) | GB139514A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1158932B (en) * | 1962-02-24 | 1963-12-12 | Siemag Siegener Masch Bau | Continuous rolling mill for wire and fine iron, in particular for rolling stainless steel, consists of several staggered lines |
-
1919
- 1919-02-27 US US279581A patent/US1465997A/en not_active Expired - Lifetime
-
1920
- 1920-02-12 FR FR519666A patent/FR519666A/en not_active Expired
- 1920-02-13 FR FR22767A patent/FR22767E/en not_active Expired
- 1920-02-27 GB GB5899/20A patent/GB139514A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR519666A (en) | 1921-06-14 |
| US1465997A (en) | 1923-08-28 |
| FR22767E (en) | 1921-08-23 |
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